Shaft connection.



PATENTED JUNE 2, 190s.

H. Numa. u

SHAFT lGUNNEGTIQN; APPLICATION FILED JUNE"19, 1902.

lllllllllll UNiTn STATES Patented J' une 2, 1908.

PATENT OFFICE.

HENRY NYBERG, `OF KENOSIIA, WISCONSIN.

SHAFT CONNECTIoN.

SPECIFICATION forming part of Letters Patent No. 729,649,4`dated J' une 2, 1903. Application led .Tune`19l 1902l Serial No. 112,310. l (No modeLl T0 (1J/Z whom, it Iii/ay concern/.-

Be it known that LHENRY NYBERG, a citizen of the United States of America, and a resident of Kenosha,in the countyof Kenosha, \Visconsin, have invented `certain new and useful Improvements in Shaft Connections, of which the following is a speciiication.'

The main object ofmy invention` is to provide an improved form of yielding shaftconn ection which is particularly applicable for the shaft carrying thefly-wheel infautomobiles and which is suitable for other mechanisms in which the framework is lightly constructed and subject to racking strains and where the shafting is liable to receive sudden bending strains or to be suddenly started and stopped. I accomplish this object by the device shown in the accompanying drawings, in which i Figure 1 is an elevation of a iiy-wheel and .shaft constructed and connected according to Fig. 2 is asection along the my invention. line 2 2 of Fig. 1.

In the construction shown the fly-wheel l is keyed to a shaft 3which is journaled in bearings (not shown in the drawings) in alinement with the driving-shaft 4. The part 5 of the hub of the i'lywheel 1 is made in the i form of a ball and fits a split socket-piece 6, l The two parts of the socket-piece 6 are each provided with laterally-projecting flanges 7 and secured to-.` gether bymeans oftthe bolts S. A pair of laminated springfarms 9 are securely clamped.` between the flanges `7 of: the socket-piece G and extend radially outward through the slots 10 in the rim `f11 ofthefly-wheeld. In order" to permit the free bending of the springs 9, the outer extremities of said springs are seated L in the close-fitting slots 12 in the pins which is keyed to the shaft f1.

The pins 13 are cylindrical and exactly fit the recesses 14, which communicate with the slots 10. The pins 13 have a slight turning movement in therecesses 11i. The slots 10 are made wide enough to permit the springs to have aslight movement therein' when ben ding,.so as to turn` the pins 13. The; pins 13 are held in-the recesses 14' by -the springs 9.

TheV web of Vthe 'fly-wheel 1 connects the rim 11 with the hub, so as to practically form a part which extends outwardly from the member 5 and over the member 6, said member 6 being connected to said part through j the resilient arms 9.

The operation of the device shown is as follows: IVhen the motorjon the shaftli is suddenly started or stopped, the springs 9 will yield slightly, and the change of motion will be gradually transmitted to the iiywheel, thus avoiding excessive torsional strains upon `the shaft. `If the si1pporting-frame becomes rackedfthrougha sudden i jar, as in case the deviceLshown is applied to an automobile when same is moving over a rough road, the

shafts 3 and 4 will be thrown out of aline ment, but will not be strained, since the ball 5 and the socket-piece G may move relatively to each other through the torsional yielding of the springs 9. It will thus be seen that the construction shown avoids the possibility of either torsional or bending strains upon the shaft. The form of connection between the springs `9 and the rim 1 of the flyewheel avoids an abrupt bending of the spring at the inner edge of the rim, and thus decreases the liability of the spring becoming ruptured and breaking at this part.

It will be seen that numerous details of the construction shown may be altered without departing from the spirit of my invention. `I therefore do not confine myself to such details, except as hereinafter limited in the claims.

lVhat I claim as my invention, and desire `to secure by Letters Patent, is-.

Aand-socket.joint connecting said shafts; a

wheel secured to said iirstshaft; and a laminated fiat spring having one end rigidly secured to said second shaft and having its other end yieldingly secured to said wheel at aconsiderable distance outward from said shafts, substantially as described.

2. The combination of a shaft; a second shaft in alinement with said first shaft a balland-socket joint connecting said shafts; a wheel secured to said .first shaft; and` a laminated fiat spring having one en d` rigidly secured to said second' shaft and having `its other end seated in a radially-disposedslot in said wheel, substantially as described.

3. The combination of a shaft; a second shaft in alinement with said iirst shaft; a ball- IOO and-socketj oint comprising a pail: of members connecting said shafts; one of the members of said joint having a part extending a considerable distance radially outward and over the second member; a radially-disposed arm 0f resilient material having its inner end rigidly secured to said second member; and suitable yielding means securing the outer end of said arm to the outwardly-extending part of said :lirst member, said means being adapted to confine the outer end of said arm against rotation relatively of said first member While permitting said outer end to yield radially of said shafts, substantially as described.

4E. The combination of a shaft; a second. shaft in alinement with said first shaft; a balland-socket joint connecting said shafts; a

` 'wheel secured to said first shaft; a radially- Vdisposed arm of resilient material having its inner end rigidly secured to said second shaft; and suitable yielding means securing the outer end of said arm to said Wheel, said means being adapted to confine the 'outer end of said arm against rotation. relatively of said first member While permitting said outer end to yield radially of said wheel, substai'ltially as described.

5. The combination of a shaft; a second shaft in alinement with said first shaft; a balland-socket joint connecting said shafts; a Wheel secured to said first shaft; and a radially-disposed arm of resilient material having one end rigidly secured to said second shaft and having its other end seated in a radiallydisposed slot in said wheel.

6. The combination of a shaft; a second shaft in alinement with said first shaft; a balland-socket joint connecting said shafts; a Wheel secured to said first shaft; and a radially-disposed arm of resilient material having one end rigidly secured to said second shaft and having its other end pivotally connected with said Wheel and radially slidable thereon.

7. The combination of a shaft; a second shaft in alinement with said first shaft; a Wheel secured to said first shaft and having a ball-shaped hub; a split socket keyed to the adjacent end of said second shaft and fitting said hub; a radially-disposed arm of resilient material having one end rigidly secured to said socket and having its other end seated in a radially-disposed slot in the rim of said Wheel, substantially as described.

8. The combination of ashaft; awheel journaled concentrically with the axis of said shaft, and having relative rotary movement; a member pivotally connected to said wheel, toward its periphery, on an axis substantially parallel with the axis of the Wheel, and having a transverse slot; and a resilient arm having 011e end secured to said shaft, and the other end seated in said slot Vand longitudinally movable therein.

9. The combination of a shaft; a Wheel j ournaled concentrically With the axis of said shaft, having relative rotary movement, and having a circular aperture in the side of its rim With an axis substantially parallel with the axis of said Wheel, and a slot extending from said aperture through the inner face of the rim; a pin seated in said aperture and having a slot extending from the slot in the rim; and a resilient arm having one end secured to said shaft, and the other end seated in said slot and longitudinally movable therein; the slot in the rim being of suitable size to permit a slight oscillation of the arm and pin on the axis of said circular aperture.

l0. The combination of a shaft; a second shaftin alinement with said first shaft; a balland-socket joint connecting said shafts; a wheel rigidly mounted on said iirst shaft and having a circular aperture in the side of its rim With an axis substantially parallel with the axis of said Wheel, and a slot extending from said aperture through the inner face of the rim; a pin seated in said aperture and having a slot extending from the slot in the rim; and a resilient arm having one end secured to said second shaft and the other end seated in said slots and longitudinally movable therein; the slot in the rim being of sufficient size to permit a slight oscillation of the arm and pin on the axis of said circular aperture.

ll. The combination of a shaft; a second shaft in alinement with said first shaft; a ballandsocket joint connecting said shafts; a Wheel rigidly mounted on said iirst shaft and having a radial slot extending toward its periphery; and a resilient arm having one end secured to said second shaft and the other end seated insaid slot and longitudinally movable therein.

12. The combination of a shaft; a second shaft in alinement with said first shaft; a balland-socket joint connecting said shafts; a Wheel rigidly mounted on said iirst shaft; a member pivotally connected to said Wheel, toward its periphery, on an axis substantially parallel With the axis of the Wheel, and having a transverse slot; and aresilient arm having' one end secured to said shaft, and the other end seated in said slot and longitudinally movable therein.

Signed at Kenosha, this 14th day of June, 1092.

HENRY NYBERG.

W'itnesses:

JOHN C. SLATER, E. M. SToKEs.

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